Meghan Markle and Prince Harry are officially married. Though the entire royal family reportedly adores the former Suits actress, the couple has had to make a few changes to adjust to the new expectations that come with their married life. Prince Harry’s grandmother, Queen Elizabeth II, wants the couple to stop doing one non-royal thing immediately (No. 10). You also won’t believe what Prince Harry and Meghan Markle can’t call each other when out in public (No. 12).

2. Advice from seasoned pros

These four are getting closer and closer. | Chris Jackson/Getty Images

Since her life has changed drastically and she made the move to the U.K. to be with Prince Harry, Markle has learned a lot about being royal. Luckily, she lived steps away from Prince William and Duchess Kate. She’s been able to grow close to them, even bonding with their two children, Prince George and Princess Charlotte.

After having to go through royal training herself, Duchess Kate has been a helpful resource for Markle as she learns to navigate her new royal life. Prince William has also reportedly made himself available as a resource for Markle if she ever has any questions or needs help with something.

Next: This was once out of the question for royals.

3. Overlooking a royal no-no

Queen Elizabeth II has given the couple her official approval. | Oli Scarff-WPA Pool/Getty Images

My Lords, I declare My Consent to a Contract of Matrimony between My Most Dearly Beloved Grandson Prince Henry Charles Albert David of Wales and Rachel Meghan Markle, which Consent I am causing to be signified under the Great Seal and to be entered in the Books of the Privy Council.

This is super modern because Markle is a divorcee, which would have been a major no-no a few decades ago. Also, how cute is Harry being the queen’s “most dearly beloved grandson”?

A royal insider told Women’s Day, “Meghan is such a warm person, but being a royal is very different to being a celebrity, and Meghan still has a lot to learn.”

Next: The infamous royal rules and protocols

5. Say no to selfies

Fans won’t be able to snap selfies with Meghan or Prince Harry. | Chris Jackson/Getty Images

Harry and Markle also have to limit themselves when it comes to selfies, per royal protocol and the queen’s personal preference. Markle has already gotten ahead of herself by deleting all of her social media accounts. It’s probably been pretty helpful since royals are absolutely forbidden to take selfies. (Apparently, that’s peasant behavior.)

Next: The new royal could actually be fined for doing one thing in public.

6. Always keep your composure

Like the queen, Meghan Markle must always look fresh and not tired or fatigued. | Ben Birchall/WPA Pool/Getty Images

Long trips, tiresome speeches, and dull events are all on Markle’s royal calendar. However, she must always be careful to mask her exhaustion. In fact, if the former actress yawns in public, she’s actually going to be penalized. She’s also not supposed to gasp or frown.

We suppose the Northwestern alum should start trying to act as robotic as possible.

7. Maintain distance

The royal couple will be avoiding photos during their celebratory nights out. | Chris J Ratcliffe/Getty Images

8. The appropriate way to wear a tiara

She’ll have the honor of donning a tiara just like Queen Elizabeth. | Michael Ukas/ Pool /Getty Images

When we think of Markle’s princess lessons, we like to imagine her walking around Buckingham Palace with a stack of books balanced on her head, but we’ve probably seen too many movies. Markle is now officially allowed to wear a tiara, but the glittering diamond incrusted crowns must be worn properly.

Modern royals wear their tiaras pushed back slightly away from the top of their heads and at a 45-degree angle. How regal.

Next: Learning to greet commoners

9. A swift hello

She’ll even have to improve her wave. | Oli Scarff/AFP/Getty Images

We’d imagine that constantly waving your hand at the public would make anyone tiresome, but as a royal, it’s just part of life.

Zarife Hardy, the founder of the Australian School of Etiquette explained, “She’ll obviously be taught more on the royal wave, it’s a bit gregarious right now and needs to be more fine-tuned. And also just that art of meeting and greeting. Looking someone in the eye, a nice firm handshake, no more than two pumps and a lovely warm smile.

Next: The one thing the queen no longer wants the couple to do

10. Stop the PDA

Though the queen adores her grandson and his new bride, she’s not too pleased about one aspect of their relationship. The super cute duo are extremely loving and affectionate in public, but that is a massive royal taboo.

An insider revealed to Women’s Day, “Being affectionate just comes naturally to Harry and Meghan, but it’s totally against royal protocol. The Queen isn’t thrilled about it at all, and word is she summoned Harry to the palace to remind him what’s expected of a royal. All the hand-holding just isn’t the royal way at all.”

Next: More surprising royal etiquette rules Markle has to follow.

11. The right way to sit

They must sit with their legs together. | Phil Noble-WPA Pool/Getty Images

You’ll never see a royal crossing their knees — especially royal women. They must always sit with their legs together. And, if they must cross something, they can cross their ankles.

That said, they can also angle their legs to the side. Kate Middleton’s go-to position incorporates all three aspects and has even been coined “the duchess slant” by Beaumont Etiquette.

Next: You’ll never hear this in public.

12. No nicknames

Meghan Markle and Prince Harry | Matt Dunham – WPA Pool/Getty Images

Notice how we never hear Prince William call the Duchess of Cambridge Kate? That’s because the royal family doesn’t have nicknames — at least, publicly they don’t. When referring to his wife in a public matter, he always calls her Catherine.

Next: The queen requires this upon first introduction.

13. How to address the Queen

Address her as “your majesty.” | Chris Jackson/Getty Images

After that, she goes by “ma’am.” In addition, male members of the royal family are addressed as “your royal highness,” followed by “sir,” and female members are addressed as “your royal highness,” followed by “ma’am.”

Next: A strict dress code

14. Adhere to the royal dress code

The royal family has a strict dress code policy — one that should never be broken. As a rule of thumb, all members of the royal family must dress modestly. Markle doesn’t appear to have any problem looking modest and royal.

Next: When the queen stops doing this, everyone stops.

15. Everyone stops eating when the queen does

Follow the queen’s lead. | Sharon Smith/AFP/Getty Images

No matter who you are or where you are seated, the queen has control of all dinners, including when everyone is finished eating. As soon as she stops, so must everyone else.

Next: There are even rules for how to walk.

16. Rank dictates walking order

The royals are supposed to go first, but it’s also polite to let women lead. | Chris Jackson/Getty Images

While royals are always accompanied by their spouses, it’s tradition for the royals to walk a few steps ahead. That said, it is also proper etiquette to let the woman lead. While the queen always walks slightly ahead of Prince Philip, Prince Harry often allows Meghan Markle to lead the way.

By royal family standard, the queen follows proper suit, but that doesn’t mean Harry is in the wrong. It’s still considered polite to let the lady lead — royal, or not.

Next: Royals even have to learn a certain way to walk.

17. A specific way to descend stairs

Women must keep their chins in line with the ground. | Nicolas Maeterlinck/AFP/Getty Images

Descending stairs in a ball gown and heels can be a recipe for disaster. Luckily, members of the royal family are trained to walk down stairs with poise. For added stability, men typically put a hand out for their spouses.

That said, women must descend stairs in a specific manner. The royal family protocol is to keep their hands at their sides and the chin in line with the ground. They may use the banister for stability but cannot grab onto it. Instead, they place their hand gently on it and point their toes toward it as they walk. Who knew walking down a flight of stairs could be so complicated?

Next: Royals don’t need to ask permission to do this.

18. Don’t ask to be excused

Just get up and go. | Lewis Whyld/WPA Pool/Getty Images

When dining, the royal family doesn’t ask permission to be excused from the table, and they certainly don’t make a fuss about it. Instead, they simply say, “excuse me,” and get up and go.